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1. WO2020112526 - POLYMER-BASED FILM WITH BALANCED PROPERTIES

Publication Number WO/2020/112526
Publication Date 04.06.2020
International Application No. PCT/US2019/062750
International Filing Date 22.11.2019
IPC
C08J 5/18 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
A61F 13/514 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
13Bandages or dressings; Absorbent pads
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
51characterised by the outer layers of the pads
514Backsheet, i.e. the impermeable cover or layer furthest from the skin
CPC
A61F 13/51401
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
13Bandages or dressings
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body
51characterised by the outer layers
514Backsheet, i.e. the impermeable cover or layer furthest from the skin
51401characterised by the material
A61F 13/51458
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
13Bandages or dressings
15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body
51characterised by the outer layers
514Backsheet, i.e. the impermeable cover or layer furthest from the skin
51456characterised by its properties
51458being air-pervious or breathable
C08J 2323/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2323Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
02not modified by chemical after treatment
04Homopolymers or copolymers of ethene
06Polyethene
C08J 2423/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2423Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
02not modified by chemical after treatment
04Homopolymers or copolymers of ethene
06Polyethene
C08J 5/18
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
Applicants
  • DOW GLOBAL TECHNOLOGIES LLC [US]/[US]
Inventors
  • HEITSCH, Andrew T.
  • LIN, Yijian
  • BONAVOGLIA, Barbara
  • HART, Kyle E.
  • DEMIRORS, Mehmet
  • CHUA, Rou Hua
  • THOTA, Manoj
Agents
  • BRENTLINGER, Nicolas A.
  • WISECUP, Bryan C.
  • BEYER, James E.
  • MONTELEONE, Allisyn E.
  • THARP, Amy M.
  • ALFORD, Carolyn S.
  • WILLIAMS JR., Larry D.
  • JIVIDEN, William A.
  • EMCH, Matthew A.
  • MCNEELY, Richard J.
  • MEYER, Christopher I.
  • LUNN, Jennifer H.
  • REED, John D.
  • INGLE, Cory J.
  • O'BRIEN, Hallie W.
  • MOLLOY, Matthew A.
Priority Data
62/773,46830.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) POLYMER-BASED FILM WITH BALANCED PROPERTIES
(FR) FILM À BASE DE POLYMÈRE AYANT DES PROPRIÉTÉS ÉQUILIBRÉES
Abstract
(EN)
A film includes 20.0 weight percent to 69.5 weight percent of a linear low density polyethylene (LLDPE) based polymer. The LLDPE having a high density fraction (HDF) from 3.0% to 8.0%, an I10/I2 ratio from 5.5 to 6.9, and a short chain branching distribution (SCBD) of less than or equal to 8.0 °C. The film also includes 0.0 weight percent to 10.0 weight percent low density polyethylene (LDPE) based polymer, and 30.0 weight percent to 70.0 weight percent pore former.
(FR)
La présente invention concerne un film qui comprend de 20,0 pour cent en poids à 69,5 pour cent en poids d'un polymère à base de polyéthylène à basse densité linéaire (PEBDL). Le PEBDL comprend une fraction à haute densité (FHD) de 3,0 % à 8,0 %, un rapport I10/I2 de 5,5 à 6,9, et une répartition de ramification de chaînes courtes (SCBD) inférieure ou égale à 8,0 °C. Le film comprend également de 0,0 pour cent en poids à 10,0 pour cent en poids de polymère à base de polyéthylène à basse densité (PEBD) et de 30,0 pour cent en poids à 70,0 pour cent en poids d'agent porogène.
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